Hey everyone, ChatGPT helped me make this as concise as possible 
So, I recently upgraded my PC and have been getting repeated BSODs. Hoping someone can help me figure out what’s going on.
________________________________________
System specs:
MB: MSI Z790 Tomahawk WiFi (latest BIOS via USB flashback)
CPU: Intel i5-14600KF + Thermalright Phantom Spirit 120 SE
GPU: Gigabyte RTX 4070
RAM: 32GB Kingston FURY DDR5 6000MHz CL30 (XMP)
Storage: WD 2TB SN850X M.2 + 2TB WD Black HDD
PSU: Seasonic Focus GX 750W Gold (used for 5 years)
OS: Windows 10 (clean installs)
XMP Profile 1 enabled, CPU undervolt -0.150V (temperatures dropped from 100 to 75 at max load)
_____________________________________
I'm getting frequent BSODs, even after multiple Windows reinstalls. Some key incidents:
Initial BSOD: IRQL_NOT_LESS_OR_EQUAL after Chrome crash, and it led to a corrupted Chrome profile
USB devices briefly disconnected before this crash
Event Viewer: Smart Card, DistributedCOM warnings, and DeviceSetupManager error (Event ID 131) - wrote this just in case
Next BSODs:
Same error while cleaning Chrome cookies (ntoskrnl.exe+22434a, 0x0000000A)
Then, another BSOD related to ACPI.sys
After that, while typing in Chrome → BSOD: KERNEL_MODE_HEAP_CORRUPTION
After reinstalling Win10, launched Chrome installer → same BSOD
SFC scan: Corrupted WindowsBase.dll and KB5056578 even after ISO repair
Next, installed .NET 4.8.1 and ran chkdsk, which triggered endless Automatic Repair loop and another Windows reinstall
Latest Windows install (WITHOUT XMP + UNDERVOLT SET TO -0.130, LLC LEVEL 3):
Installed drivers offline before connecting to internet
Windows Update installed Razer Synapse (for my mouse) + "Intel - Net" driver (don't know what this is)
Then, during an image backup to external USB 3.0 HDD (connected to front panel), all USB devices disconnected and the process failed
Tried it again → BSOD: KERNEL_MODE_HEAP_CORRUPTION (ntoskrnl.exe+3fdf30)
________________________________________
What I’ve tried:
Switched to XMP Profile 2, then fully disabled XMP
CPU undervolt adjusted to -0.130V, LLC Level 3
memtest86 with XMP Profile 2 (2 full passes) – no errors
Windows Memory Test – no issues
Stability tests:
Prime95, FurMark, Intel XTU (from -0.150 to -0.130) – all passed
Temps good: CPU max ~79°C, GPU ~60°C, idle around 51°C
________________________________________
What works well:
System is stable during long gaming sessions (Oblivion Remastered, KCD2)
Plays YouTube overnight with no issues
No Chrome glitches anymore, but it was running in background when I got the last BSOD
Overall, PC feels fast and snappy
________________________________________
I've tried everything I can think of—disabling unnecessary services, testing memory, stable drivers, no Fast Startup, SSD/HDD maintenance, power cycling, etc.
What should I try next? What could be the main cause?

So, I recently upgraded my PC and have been getting repeated BSODs. Hoping someone can help me figure out what’s going on.
________________________________________
System specs:
MB: MSI Z790 Tomahawk WiFi (latest BIOS via USB flashback)
CPU: Intel i5-14600KF + Thermalright Phantom Spirit 120 SE
GPU: Gigabyte RTX 4070
RAM: 32GB Kingston FURY DDR5 6000MHz CL30 (XMP)
Storage: WD 2TB SN850X M.2 + 2TB WD Black HDD
PSU: Seasonic Focus GX 750W Gold (used for 5 years)
OS: Windows 10 (clean installs)
XMP Profile 1 enabled, CPU undervolt -0.150V (temperatures dropped from 100 to 75 at max load)
_____________________________________
I'm getting frequent BSODs, even after multiple Windows reinstalls. Some key incidents:
Initial BSOD: IRQL_NOT_LESS_OR_EQUAL after Chrome crash, and it led to a corrupted Chrome profile
USB devices briefly disconnected before this crash
Event Viewer: Smart Card, DistributedCOM warnings, and DeviceSetupManager error (Event ID 131) - wrote this just in case
Next BSODs:
Same error while cleaning Chrome cookies (ntoskrnl.exe+22434a, 0x0000000A)
Then, another BSOD related to ACPI.sys
After that, while typing in Chrome → BSOD: KERNEL_MODE_HEAP_CORRUPTION
After reinstalling Win10, launched Chrome installer → same BSOD
SFC scan: Corrupted WindowsBase.dll and KB5056578 even after ISO repair
Next, installed .NET 4.8.1 and ran chkdsk, which triggered endless Automatic Repair loop and another Windows reinstall
Latest Windows install (WITHOUT XMP + UNDERVOLT SET TO -0.130, LLC LEVEL 3):
Installed drivers offline before connecting to internet
Windows Update installed Razer Synapse (for my mouse) + "Intel - Net" driver (don't know what this is)
Then, during an image backup to external USB 3.0 HDD (connected to front panel), all USB devices disconnected and the process failed
Tried it again → BSOD: KERNEL_MODE_HEAP_CORRUPTION (ntoskrnl.exe+3fdf30)
________________________________________
What I’ve tried:
Switched to XMP Profile 2, then fully disabled XMP
CPU undervolt adjusted to -0.130V, LLC Level 3
memtest86 with XMP Profile 2 (2 full passes) – no errors
Windows Memory Test – no issues
Stability tests:
Prime95, FurMark, Intel XTU (from -0.150 to -0.130) – all passed
Temps good: CPU max ~79°C, GPU ~60°C, idle around 51°C
________________________________________
What works well:
System is stable during long gaming sessions (Oblivion Remastered, KCD2)
Plays YouTube overnight with no issues
No Chrome glitches anymore, but it was running in background when I got the last BSOD
Overall, PC feels fast and snappy
________________________________________
I've tried everything I can think of—disabling unnecessary services, testing memory, stable drivers, no Fast Startup, SSD/HDD maintenance, power cycling, etc.
What should I try next? What could be the main cause?